:root {
  --primary: #90caf9;
  --primary-ink: #0b1a2a;
  --bg: #121212;
  --surface: #1e1e1e;
  --surface-2: #262626;
  --line: rgba(255, 255, 255, 0.12);
  --text: #ececec;
  --muted: #a9b1ba;
  --ok: #81c784;
  --bad: #ef9a9a;
  --radius: 14px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); }

.top, main, .foot {
  max-width: 1040px;
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 8px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}

.brand img { border-radius: 8px; }

.lang {
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 14px;
}
.lang:hover { border-color: var(--primary); }

section { padding: 40px 0; }

.hero { padding-top: 56px; padding-bottom: 48px; }

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  max-width: 18ch;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  line-height: 1.25;
}

h3 { margin: 0 0 8px; font-size: 1.08rem; color: var(--primary); }

.lead { margin: 0; max-width: 60ch; font-size: 1.12rem; color: var(--text); }

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin: 28px 0 0;
}

.note { color: var(--muted); font-size: 0.95rem; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: var(--primary-ink);
  border: 0;
  border-radius: 999px;
  padding: 12px 24px;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.08); }
.btn:focus-visible, .lang:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn[disabled] { opacity: 0.6; cursor: progress; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.card p { margin: 0; color: var(--muted); }

.two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px 40px;
}

.list { margin: 0; padding-left: 1.2em; color: var(--muted); }
.list li { margin-bottom: 10px; }
.list li::marker { color: var(--primary); }
.list.check { list-style: none; padding-left: 0; }
.list.check li { position: relative; padding-left: 28px; }
.list.check li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

.form-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 20px;
  margin: 24px 0 40px;
  scroll-margin-top: 16px;
}
@media (min-width: 720px) { .form-wrap { padding: 36px 40px; } }

.intro { margin: 0 0 24px; color: var(--muted); max-width: 65ch; }

.row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0 16px;
}

.field { margin: 0 0 14px; border: 0; padding: 0; min-width: 0; }

label, legend { display: block; font-weight: 600; margin-bottom: 6px; padding: 0; }

input[type="text"], input[type="email"], input[type="tel"], textarea {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 12px;
  font: inherit;
}
textarea { resize: vertical; min-height: 120px; }
::placeholder { color: #7d858d; }

.has-error input, .has-error textarea { border-color: var(--bad); }

.choices { display: flex; flex-wrap: wrap; gap: 8px; }

.choice {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  font-weight: 400;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
  margin: 0;
  cursor: pointer;
}
.choice input { margin: 0; accent-color: var(--primary); }
.choices .choice { align-items: center; }
.consent .choice input { margin-top: 5px; }
.choice:has(input:checked) { border-color: var(--primary); }

.consent .choice { background: transparent; border: 0; padding: 0; }

.hint { margin: 4px 0 0; color: var(--muted); font-size: 0.88rem; }
.err { margin: 4px 0 0; color: var(--bad); font-size: 0.88rem; min-height: 0; }
.err:empty { display: none; }

.privacy { margin: 14px 0 0; color: var(--muted); font-size: 0.88rem; }

.result { display: none; border-radius: 10px; padding: 12px 14px; margin: 0 0 18px; font-weight: 600; }
.result.show { display: block; }
.result.ok { background: rgba(129, 199, 132, 0.12); color: var(--ok); border: 1px solid rgba(129, 199, 132, 0.4); }
.result.bad { background: rgba(239, 154, 154, 0.1); color: var(--bad); border: 1px solid rgba(239, 154, 154, 0.4); }

.trap { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.foot {
  border-top: 1px solid var(--line);
  width: calc(100% - 32px);
  max-width: 1008px;
  padding-left: 0;
  padding-right: 0;
  padding-top: 20px;
  padding-bottom: 32px;
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 16px;
}
.foot p { margin: 0; }